Machined caged needle roller bearing RNA49/22UU, 28 mm ID x 39 mm OD x 17 mm width, single bearing, high carbon steel, with oil hole and seals, one-row for linear slide and sealed ball bearing use

Single sealed caged needle roller bearing, RNA49/22UU
✔️ 28 mm ID x 39 mm OD x 17 mm width, oil hole & seals, 7000 rpm

This listing is for one single bearing, a machined caged needle roller ideal for high-load, compact assemblies like linear slide units, gearboxes, and actuator shafts. It ships as one sealed unit.

✅ Model: RNA49/22UU, RNA49 Metric Series
✅ Inner diameter 28 mm, outer diameter 39 mm, width 17 mm
✅ Material: high carbon steel, machined caged design
✅ Enclosure: synthetic rubber seals, with oil hole for relubrication
✅ Dynamic load capacity 18,300 N, static load capacity 23,700 N
✅ Maximum speed 7000 rpm, one-row needle roller configuration
✅ Typical uses: linear slide units, actuator shafts, compact gearboxes

💡 What is a needle roller bearing used for in linear slide units and similar machinery? Needle roller bearings deliver compact, high-radial-load support when space is tight and stiffness matters. Quick intro: Practical benefits for machine designers: - High radial load capacity in a narrow cross-section for linear slide units and actuator shafts. - A handy option when a sealed ball bearing is too large but you still need robust rolling elements. - Works well in oil-lubricated setups; an oil hole plus seals help with maintenance and longer service life.